Appendix A: Cabling Quick Reference 265
Table A-1 Cabling Distances for Network Media and Cabling
Media Cable Type
Maximum
Distance
Async EIA/TIA-232 2400 baud 60 m (200 ft)
4800 baud 30 m (100 ft)
9600 baud 15 m (50 ft)
19200 baud 15 m (50 ft)
38400 baud 15 m (50 ft)
57600 baud 7.6 m (25 ft)
115200 baud 3.7 m (12 ft)
Sync EIA/TIA-449 with balanced drivers, including
X.21 and V.35
2400 baud 1250 m (4100 ft)
4800 baud 625 m (2050 ft)
9600 baud 31 m (1025 ft)
19200 baud 156 m (513 ft)
38400 baud 78 m (256 ft)
56000 baud 31 m (102 ft)
T1 (1.544 mbps) 15 m (50 ft)
1
UTP = unshielded twisted-pair
2
STP = single twisted-pair
3
When using 1000BASE-LX/LH GBICs with 62.5 micron multimode fiber, you must use a mode-conditioning patch cord
for distances of more than 300 m (984 ft). See
www.cisco.com/univercd/cc/td/doc/product/lan/cat5000/cnfg_nts/ethernet/5421_01.htm for installation and usage
information.
4
SMI = single-mode intermediate reach.
In many cases, you might find that you need to know the pinout connections for various net-
work cables. The RJ-45 connector is commonly used across many media, but with different
pinouts for each. Table A-2 shows the pinout for an RJ-45 connector when used with specific
media.
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